diff options
Diffstat (limited to 'libtommath/bn_mp_init_size.c')
| -rw-r--r-- | libtommath/bn_mp_init_size.c | 31 |
1 files changed, 5 insertions, 26 deletions
diff --git a/libtommath/bn_mp_init_size.c b/libtommath/bn_mp_init_size.c index 1becb23..d622687 100644 --- a/libtommath/bn_mp_init_size.c +++ b/libtommath/bn_mp_init_size.c @@ -1,27 +1,15 @@ #include "tommath_private.h" #ifdef BN_MP_INIT_SIZE_C -/* LibTomMath, multiple-precision integer library -- Tom St Denis - * - * LibTomMath is a library that provides multiple-precision - * integer arithmetic as well as number theoretic functionality. - * - * The library was designed directly after the MPI library by - * Michael Fromberger but has been written from scratch with - * additional optimizations in place. - * - * SPDX-License-Identifier: Unlicense - */ +/* LibTomMath, multiple-precision integer library -- Tom St Denis */ +/* SPDX-License-Identifier: Unlicense */ /* init an mp_init for a given size */ -int mp_init_size(mp_int *a, int size) +mp_err mp_init_size(mp_int *a, int size) { - int x; - - /* pad size so there are always extra digits */ - size += (MP_PREC * 2) - (size % MP_PREC); + size = MP_MAX(MP_MIN_PREC, size); /* alloc mem */ - a->dp = (mp_digit *) XMALLOC((size_t)size * sizeof(mp_digit)); + a->dp = (mp_digit *) MP_CALLOC((size_t)size, sizeof(mp_digit)); if (a->dp == NULL) { return MP_MEM; } @@ -31,15 +19,6 @@ int mp_init_size(mp_int *a, int size) a->alloc = size; a->sign = MP_ZPOS; - /* zero the digits */ - for (x = 0; x < size; x++) { - a->dp[x] = 0; - } - return MP_OKAY; } #endif - -/* ref: $Format:%D$ */ -/* git commit: $Format:%H$ */ -/* commit time: $Format:%ai$ */ |